I know this is an old thread but wondered if you got anywhere with this? I have a 53 reg Citroen Relay which apparently has the Fiat Ducato locking system on it and it doesn't work either. Its never worked since I've owned it by either the remote key or the door buttons. Battery is 3v as its supposed to be and the little red light flashes when you push the button. I tried the BSI Reset procedure below but to no avail. Anyone have any ideas on what to try next?
BSI RESET PROCEDURE
Put the driver's window down, lift the bonnet and ensure all equipment is switched off.
Ensure all doors are closed and remove key from the ignition.
Wait for 3 minutes, disconnect the vehicle battery and wait 15 seconds.
Reconnect the vehicle battery, wait a further 10 seconds (do not open doors.).
Switch on the side lights through the driver's window.
Switch on the ignition and check system's functionality.
Hold lock button on key down for 10 seconds.
Remove key open & close door test central locking system.
Start the engine and complete the system's check.
Failure to follow this procedure could result in incorrect operation of many BSI related items.
